Integrate Authentication with Sign in with Apple
To implement "Sign in with Apple" in your iOS app, Apple provides an authentication service that requires careful integration following certain guidelines and best practices. Here's a profound guide on how to implement Apple Sign-In in your iOS apps.
Add the Sign In with Apple Capability
- Navigate to your Xcode project's settings and select your app target.
- Go to the "Signing & Capabilities" tab, and click the "+" button to add a new capability.
- Select "Sign in with Apple" from the list. This step is crucial for enabling the feature in your app.
Import Authentication Services
Make sure to import the necessary framework to use Apple's authentication services in your code.
import AuthenticationServices
Implement the ASAuthorizationControllerDelegate Protocol
Create a class conforming to the ASAuthorizationControllerDelegate protocol to handle responses from Apple Authentication.
class SignInWithAppleDelegate: NSObject, ASAuthorizationControllerDelegate {
func authorizationController(controller: ASAuthorizationController, didCompleteWithAuthorization authorization: ASAuthorization) {
if let appleIDCredential = authorization.credential as? ASAuthorizationAppleIDCredential {
let userIdentifier = appleIDCredential.user
let fullName = appleIDCredential.fullName
let email = appleIDCredential.email
// Use userIdentifier, fullName, and email to store the user's credentials and grant access.
}
}
func authorizationController(controller: ASAuthorizationController, didCompleteWithError error: Error) {
// Handle error during Apple Sign-In
}
}
Initiate the Sign-In Request
Configure and start the authorization request from where the user initiates the sign-in process in your app.
let request = ASAuthorizationAppleIDProvider().createRequest()
request.requestedScopes = [.fullName, .email]
let authorizationController = ASAuthorizationController(authorizationRequests: [request])
authorizationController.delegate = signInWithAppleDelegate
authorizationController.performRequests()
Handle Credential State Changes
Monitor the credential status by implementing the ASAuthorizationAppleIDProvider to maintain and respond to changes, ensuring that your app handles the loss of credentials or when users revoke their consent.
let appleIDProvider = ASAuthorizationAppleIDProvider()
appleIDProvider.getCredentialState(forUserID: userIdentifier) { (credentialState, error) in
switch credentialState {
case .authorized:
// The Apple ID credential is valid.
case .revoked:
// The Apple ID credential is revoked.
case .notFound:
// No credential was found.
default:
break
}
}
Manage User Privacy
- Ensure that user data such as the user identifier and user credentials are securely stored and comply with privacy policies.
- Be clear about what user data you collect and how it’s used, adhering to the App Store Guidelines.
By implementing these steps, your app will provide seamless and secure authentication with "Sign in with Apple," offering your users enhanced privacy controls and a simplified sign-in process.
